Closure for bottles and other containers



W L 13. w. H. GREEN CLOSURE FOR BOTTLES AND OTHER CONTAINERS Filed July 5, 1934 INVENTOR.I

Patented Apr. 21, 1936 UNITED STATES CLOSURE FOR BOTTLES AND OTHER CONTAINERS William Henry Green, Lewisham, London, England Application July 5, 1934, Serial No. 733,887

In Great Britain 1 Claim.

This invention relates to improvements in closures for containers, more particularly bottles used for containing alcoholic and other beverages. The closure of such bottles is now generally effected by a cap comprising a metallic shell, and an inserted disc of cork or other cushioning material. It has been found desirable in certain cases to prevent the liquid contained in the bottle from coming into contact with the disc of cork or other material, and for this purpose it has been proposed to provide the inner surface of the cork or like disc with a disc of metallic foil or waterproofed paper, of a smaller diameter than the disc of cork or other material, so that the liquid will contact with the foil or paper instead of with the cork or other material. This smaller disc of metallic foil or Waterproofed or varnished paper has been concentrically attached by means of an adhesive, usually a layer of gutta percha or like material, which will become plastic under heat. Now the primary object of the present invention is to so attach a protective layer of a suitable material, such as metallic foil or transparent paper, to the cork or other cushioning material disc as to prevent the liquid contained in the bottle from contacting with the cork or like disc in a simple and reliable manner without the use of any kind of adhesive, since the use of any adhesive has certain'drawbacks in practice, and moreover protective discs of varnished paper or metallic foil or the like when attached by adhesives are liable tobecome detached before or during the bottling operation.

The present invention comprises in a closure of the above described kind, a layer or strip of relatively thin protective material of the same width as or of a less Width than the diameter of the cushioning disc of material and attached to said disc by turning its opposite edges over the edges of said disc and partially underneath it.

This invention will be now more particularly described making reference to the accompanying drawing in which:

Fig, 1 is an inverted plan view-on anenlarged scale-of a bottle closure embodying the present invention.

Fig. Z'is a view in section on line 2-2 of Fig. 1.

Fig. 3 is a part view in section of a bottle neck showing the closure in position sealing the outlet.

November 29, 1933 Fig. 4 is a similar view to Fig. 1 of a modification.

Fig. 5 is a view in plan of the protective material before being applied to the cushioning disc, and

Fig. 6 is an inverted plan view of the cushioning disc with the protective material applied thereto and before insertion within the metallic shell.

Throughout the views similar parts are marked with like letters of reference.

A strip or ribbon a of relatively thin protective material-preferably cellulosic material such as waterproof transparent paper either of a width slightly greater than the aperture r of the bottle 0: which is to be closed by the cap as shown in Figs. 1-3, or of the same width as the diameter of the cushioning disc b as shown in Figs. 4-6, is out off into rectangular pieces of a length slightly in excess of the diameter-see more particularly Fig. 5-of the disc 13- of cork or other cushioning materia1 which is employed in the outer metal shell 0. One of these oblong pieces a of material is then positioned above the disc b of cork or other cushioning material so that two of its opposite edges (1 0. equally and slightly overlap the edges of the disc 11 whilst the other and longer opposite edges either leave portions-one on each side-of the disc I) uncovered, as shown in Fig. 1, or entirely cover the disc b as shown in Fig. 4.

The overlapping edges or corners a a of material a are then turned over and. partly underneath the edge of the disc 0 which is then pressed into the metal shell 0; thereby retaining the material w in position without the use of any adhesive, at the same time allowing the material or the like to assume a convex shape without splitting when the cap is positioned on the neck of the bottle x as shown in Fig. 3.

I declare that what I claim and desire to secure by Letters Patent is:

In a crown cork seal for bottles and other containers in which the liquid contacting surface of a disc of cushioning material is covered with waterproof material, a rectangular oblong strip of Waterproof material, such as transparent paper, of a width approximating the diameter of the cushioning disc and of a. length greater than the diameter of said disc held in place by tucking in the corners of said strip under the cushioning disc, as set forth.

WILLIAM HENRY GREEN. 

